Harry price



H, PRIGE- GAGE.

1887. lamented Feb. 15,

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N. PETE PATENT lEEiCEE.

HARRY PRICE, OF SAUK RAPIDS, MINNESOTA.

GAGE.

SPECIFICATION forming part of Letters Patent No. 357,628, dated February 15, 1887.

Application filed September 4, 1886. Serial No. 212,722. (No model.)

To all whom it may concern:

Be it known that I, HARRY PRICE, a citizen of the United States, residing at Sauk Rapids, in the county ofBenton, State of Minnesota, have invented certain new and useful Improvey ments in Gages, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to improvements in carpenters gages; and the objects of my improvement are mainly to mark with rapidity and precision upon doors and door-jambs the dimensions of mortises that are to be cut into said parts for the insertion of the hinges. I attain these objects by the device illustrated in the accompanying drawings, in which- Figure 1 is a top View of a gage constructed in accordance with my invention. Fig. 2is a longitudinal section of the same. Fig. 3 is a perspective view of [he same.

The gage consists of a thin plate ofsheet metal, A, having a scribing-point,projecting from three of its corners, as shown at l 2 3. The points 1 and 2 project from the side and the point 3 from the end of the plate A. Upon said plate are placed L-shaped clamps b, that bear against its edges and are connected together by screw-bolt b2, the head of which bears against one of the clamps, and its screwthreaded end enters a screw-tapped hole in the opposite clamp. The face ot' the plate A is subdivided into inches, and subdivisions thereof marked thereon adjacent to its edges, the divisions at one edge being marked to correspond with the divisions on the opposite edge, so that when the edge of each clamp b is set upon a division each clamp ofa pair will be at equal distance from the end of the plate. These clamps can be used as the head of a trysquare, while the edges a can be used as its blade or ruler in marking with a pencil the top and bottom of a mortise to be cut. To indicate the thickness of the wood to be removed to produce the mortise and bring the guiding-clamp b3 against the end of the plate A,.a slot, C, is cut across said plate at a short distance from the end provided with scribingpoi-nt 3.

The guiding parts consistof L-shaped clamps b3, substantially similar to the clamps b, united by a screw-bolt, b", and they are thus made to clamp that portion of the plate A between l the slot C and the end of the gage. As the plate A of said gage may be-six inches or more in length, no foot-rule or other guide need be used in marking the exact location to be oc` cupied by a hinge upon a door or upon a doorjamb.

In using the device upon a door or its jamb to mark correctly the contour of a mortise intended to receive a hinge, the clamps bare set at a distance from the scribe l to corre spond with the width of the hinge to be attached to the door, the device being then held in hand, with its surface at an angle of about forty-live degrees to the surface of the door to permit the scribe-point l to enter slightly into the lumber, and with the clamp b against the edge of the door the device is drawn along said edge, causing the scribe l to form in the door a narrow groove parallel with its edge. The instrument is then laid iiat upon the door, with both clamps of a pair bearing against its edge, (as the thick portion of a trysquare,) andthe edge a of the device is used as a guide to make a straight pencil-mark at the points to be occupied by the top and bottom edge of the mortise. A pair of clamps, bi, is also secured upon the plate A to permit a mortise for a hinge upon one end of a door to be set at a different distance from the edge of said door than the first-stated hinge to have the door swing clear oli" the floor. -The clamp bAk is thus held in reserve to permit a second mortise dift'ering in size from the first to be marked upon a door or its jamb without changing t-he first set7 obtained upon the device.

" Having now fully described my invention, I claim- 1. A gage consisting of a thin plate of sheet metal having scribing-points projecting from two or -more of its corners, and scale-divisions adjacentto two of its edges, and two or more L-shaped parts arranged in pairs, and a bolt uniting each pair and adjustably clamping veach pair to said plate of metal, substantially as and for the purpose described.

2. A gage consisting of :L thin plate having In testimony whereof afx my signature serbng-points projecting from its corners, a in presence of two witnesses. transverse slot adjacent to one end, and series of sealedivisions adjacent; to two of its edges, Y HARRY PRICE. in combination with series of clamps projecting in pairs from the sides and also the end 'Vitnesses: of the scale-plate, substantially as and for the ANDREW C. ROBERTSON, purpose described. ISAAC L. PHILo. 

